改变iAd横幅位置

Question

我努力让iAdBanner出现在屏幕的顶部而不是底部。在故事板中，我将AdBanner放在顶部但是当应用程序加载时它仍然出现在屏幕的底部，但是，当我单击广告然后退出它时，iAdBanner会按预期移动到屏幕顶部。任何有关将其默认位置设置到屏幕顶部的帮助表示赞赏。

以下是我目前用于触发添加的代码。

- (void)bannerViewDidLoadAd:(ADBannerView *)banner
{
    [UIView beginAnimations:nil context:nil];
    [UIView setAnimationDuration:1];
    [banner setAlpha:1];
    [UIView commitAnimations];
    NSLog(@"Ad Displayed");
}

- (void)bannerView:(ADBannerView *)banner didFailToReceiveAdWithError:(NSError *)error
{
    [UIView beginAnimations:nil context:nil];
    [UIView setAnimationDuration:1];
    [banner setAlpha:0];
    [UIView commitAnimations];
    NSLog(@"Ad Failed To Display");
}

- (void)viewDidLoad
{
    [super viewDidLoad];

    // Configure the view.
    SKView * skView = (SKView *)self.view;
    skView.showsFPS = YES;
    skView.showsNodeCount = YES;

    // Create and configure the scene.
    SKScene * scene = [AlienGravityGame sceneWithSize:skView.bounds.size];
    scene.scaleMode = SKSceneScaleModeAspectFill;

    // Present the scene.
    [skView presentScene:scene];
    self.canDisplayBannerAds = YES;
}